FIELD: chemistry.
SUBSTANCE: described is a method of producing butadiene-styrene statistical polymers via copolymerisation of monomers in the medium of a hydrocarbon solvent in the presence of an organolithium compound and a modifier, characterised by that the modifier used is a mixed alcoholate of sodium and calcium in molar ratio sodium: calcium equal to 1:0.1-2.5 respectively, in molar ratio of organolithium compound: mixed alcoholate of sodium and calcium equal to 1:0.5-2.5, respectively, with consumption of active metal equal to 2-12 mol per ton of monomers.
EFFECT: obtaining butadiene-styrene statistical polymers with high content of vinyl links and high content of 1,4-trans links.
3 cl, 3 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OBTAINING BUTADIENE-STYRENE COPOLYMERS | 2018 |
|
RU2671556C1 |
| METHOD OF PRODUCING BUTADIENE POLYMERS AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2008 |
|
RU2377258C2 |
| METHOD OF PRODUCING MODIFYING ADDITIVE OF ORGANOLITHIUM COMPOUND AND METHOD OF PRODUCING POLYBUTADIENE AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2008 |
|
RU2382792C2 |
| BUTADIENE POLYMERS' AND BUTADIENE/STYRENE COPOLYMERS' PRODUCTION PROCESS | 2003 |
|
RU2228339C1 |
| METHOD FOR OBTAINING BUTADIENE POLYMERS AND BUTADIENE COPOLYMERS WITH STYRENE | 2007 |
|
RU2339651C9 |
| METHOD OF SYNTHESIS OF DIENE (CO)POLYMERS WITH INCREASED CONTENT OF 1,2-LINKS | 2001 |
|
RU2175329C1 |
| METHOD OF OBTAINING FUNCTIONALISED POLYMERS OF BUTADIENE AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2013 |
|
RU2538591C1 |
| METHOD OF PRODUCING BUTADIENE POLYMERS AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2016 |
|
RU2644775C2 |
| METHOD FOR OBTAINING RANDOMIZED COPOLYMERS WITH A LOW CONTENT OF VINYL GROUPS, COPOLYMERS OBTAINED BY THIS METHOD, AND RUBBER MIXTURES BASED ON THESE COPOLYMERS | 2018 |
|
RU2762602C1 |
| METHOD OF OBTAINING BUTADIENE POLYMERS AND COPOLYMERS OF BUTADIENE WITH STYRENE | 2009 |
|
RU2405000C2 |
